SOLVED
I just find and edit file components/elements/form-field.json
(or your-name.json)
I’ve add
{
"collectionName": "components_elements_form_fields",
"info": {
"name": "FormField",
"icon": "traffic-light"
},
"options": {},
"attributes": {
"name": {
"type": "string"
},
// ==== new field I can't add in editor =======
"SelectOplions": {
"type": "component",
"repeatable": true,
"component": "elements.key-value"
}
//=========
}
}
Type-Builder shows new field correctly without strapi reload.